ARE YOU PROPERLY INSTALLING THAT MARINCO PLUG!!!????
NO you are NOT, if it is able to FALL OUT... sorry, it is a twist lock, and will arc
and cause fires when not locked., you are most fortunate to have had it "fall out"
do i t right, as is meant to be done, and not only will it not "fall out", it will protect your boat from reverse polarity and loss of ground.
MUST be twisted to lock.
read that onyour plug
it is plainly marked in raised letters.
as 3 prong is only 15 amp, you MUST count well the amps used at each moment of your dock
do not cause problems by overusing, as fire is not fun.
this is not about doing business, it is about protecting YOUR boat from flames, and same the marina, as many folks do not know how to properly use the marinco equipment